Saliva collection device



FIG. 1 is a front perspective view of a saliva collection device;

FIG. 2 is a bottom perspective thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a left-side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is an exploded view thereof.

The broken lines depict portions of the saliva collection device that form no part of the claimed design. 

CLAIM The ornamental design for a saliva collection device, as shown and described. 